Generic 9300 tile Specs

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Author Message Dale Roberts CSI, CCPR, CTC, LEED Green Associate Senior Member Username: dale_roberts_csi Post Number: 96 Registered: 10-2005 Posted on Wednesday, April 18, 2012 - 05:49 pm:    I see a lot of generic information in the 9300 tile specification. Install tile according to ANSI A108.1 thru 108.17 or Follow TCNA installation methods. Wouldn’t it be best if a specific TCNA method was selected? This would level the playing field regarding the bidding (everyone biding using the same installation method) if it’s the wrong method then someone would RFI with a better method? ken hercenberg Senior Member Username: khercenberg Post Number: 194 Registered: 12-2006 Posted on Wednesday, April 18, 2012 - 06:30 pm:    Exactly. Listing TCNA without citing appropriate methods is like saying you drive a Chevy, thinking everyone will know you drive a Corvette while people will think that you drive a Chevette, or whatever the cheapo Chevy is nowadays. Specify what you want; you do not want to leave it up to the Contractor. Steven Bruneel, AIA, CSI-CDT, LEED-AP Senior Member Username: redseca2 Post Number: 333 Registered: 12-2006 Posted on Wednesday, April 18, 2012 - 07:28 pm:    There are so many differences in the TCNA assemblies I could not imagine not including a "schedule of assembly types" based on TCNA assemblies in the tile section. Seletion of the right assembly can be dependent on a lot of factors and changing it in mid-design, let alone leaving it open in the Bid Documents, will often affect the work of other trades: - TCNA selection recommendations based on service requirements and environmental classifications. - Significant cost differences between assembly types. - Some work better for fire rated construction and some don't work at all. - Detailing of concrete slab depression depths based on the needs of specific TCNA assemblies. - Specifications for floor drains and other items that must be tailored to the TCNA assembly type. - Preference for the location of waterproof membranes (above or below a setting bed). - The skill level of likely bidders (where you can, and where you cannot specify a setting bed). Dale Hurttgam, NCARB, AIA,LEED AP, CSI Senior Member Username: dwhurttgam Post Number: 99 Registered: 10-2005 Posted on Thursday, April 19, 2012 - 10:04 am:    I agree with Steve's approach. With Master Spec, the last paragraph in Part 3 is a schedule of installation based on TCNA installation method nos. We typically identify all of our assemblies including variances for large format tiles or other special conditions in this location.